ONTARIO - A Chino man placed on probation through California's Prison Realignment Plan was behind bars Friday as authorities investigate his roll in a recent shooting that ended in a man's death, Ontario Police officials said.

Hector Perez, 32, of Chino was arrested for violating his probation Wednesday evening hours after a man was shot in the 2000 block of South Campus Avenue, according to Lt. Bill Russell. The shooting victim died at the hospital Thursday night. His name has not yet been released.

"He was arrested to determine his involvement (in the homicide case,)" Russell said. "But he's going to be held no matter what on his probation violation."

Perez violated his probation when he was reportedly found in possession of a controlled substance, records show. Perez was arrested Wednesday evening in the 5200 block of Phillips Boulevard in Chino, booking records indicate.

Perez, who served a state prison term for a non-violent felony in the past, was placed on court-ordered community supervision probation though Assembly Bill 109 when he was set to be released from his most recent stint in prison on a recent drug conviction, San Bernardino County court records indicate.

A three-judge panel ruled that California needed to reduce the prison population by 33,000 inmates by July 2014 due to the extreme overcrowding in the facilities. Gov. Jerry Brown signed AB 109 in an effort to meet that goal by placing lower-level offenders under county supervision.

Only inmates and those convicted of triple-non-violent, non-serious, non-sexual - offenses would be considered for local monitoring though a loophole in the bill has reportedly led to violent criminals being placed in local county jails and on local probation supervision.

"They don't look into a person's background," said probation Officer Jerad Linnell during a recent interview. "They only look into their last conviction."

This has led to in one case, a man who had spent time in the secured housing unit of Pelican Bay being placed on community supervision, probation officials said.

But the problem also extends to local jails.

Anyone convicted of a triple-non crime after Oct. 1, 2011, the day AB 109 was implemented, would serve their sentence in county jails instead of state prison. This has led to reports of jail overcrowding throughout the state.

While the state has not been engaging in any early releases on state inmates, San Bernardino County Sheriff's officials said the county has been forced to place county inmates on GPS monitoring, work-release programs and even early release to alleviate the overcrowded conditions.

Ontario officers found the victim lying in the parking lot of a condominium on Campus Avenue on Wednesday suffering from a gunshot wound. He was taken to a hospital in critical condition and died one day later, officials said.

The homicide is still under investigation. Anyone with information is asked to contact Ontario Police detectives at 909-395-2001.